Home / 15,349.70-21,182.56-8,635.33

Finding the Fourth Proportional to 15,349.70, 21,182.56 and 8,635.33

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Solution

The fourth proportional to 15,349.70, 21,182.56 and 8,635.33 is: 11,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.70 : 21,182.56 = 8,635.33 : x
  2. Step 2: Convert to fraction form
    15,349.70/21,182.56 = 8,635.33/x
  3. Step 3: Cross multiply
    15,349.70x = 21,182.56 × 8,635.33
  4. Step 4: Simplify right side
    15,349.70x = 182,918,395.84
  5. Step 5: Solve for x
    x = 182,918,395.84/15,349.70
  6. Step 6: Final answer
    x = 11,916.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.